Add infrastructure for libjunction

The source code for libjunction used to be maintained in
fedfs-utils, but fedfs-utils is being retired. Although interest in
FedFS junctions has waned, NFS basic junctions are still appealing
enough that we've decided we want to continue supporting them.
Therefore this patch moves the non-LDAP parts of libjunction into
nfs-utils, to enable nfs-utils to also support the user-visible
pieces of NFS basic junctions.

I've added yet another configure command line option to control
whether libjunction is built. It defaults to "disabled" for the
moment. Reasons you might want to leave it disabled:

- Your distribution still provides fedfs-utils, which already has
a working libjunction which is installed separately

- Your distribution does not provide libxml2, which is required
to support libjunction

When it's disabled, nfs-utils builds just like it did before this
patch, and there's no new dependency on libxml2.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/support/Makefile.am b/support/Makefile.am
index 8365d3b..c962d4d 100644
--- a/support/Makefile.am
+++ b/support/Makefile.am
@@ -6,6 +6,10 @@ if CONFIG_NFSV4
 OPTDIRS += nfsidmap
 endif
 
+if CONFIG_JUNCTION
+OPTDIRS += junction
+endif
+
 SUBDIRS = export include misc nfs nsm $(OPTDIRS)
 
 MAINTAINERCLEANFILES = Makefile.in